Enable moving own features on MapLibre and switch to raster tiles.

Add feature geometry PATCH API support and update MapLibre demo to use OSM raster tiles, load all public/owned features, and let logged-in users drag their own feature markers to persist new positions.

Made-with: Cursor

internal/app/service.go

@@ -443,6 +443,23 @@ func (s *Service) DeleteFeature(ownerKey, featureID string) error {
 	return s.store.DeleteFeature(featureID)
 }
 
+func (s *Service) UpdateFeatureGeometry(ownerKey, featureID string, geometry store.Point) (store.Feature, error) {
+	feature, err := s.store.GetFeature(featureID)
+	if err != nil {
+		return store.Feature{}, ErrFeatureMiss
+	}
+	if feature.OwnerKey != ownerKey {
+		return store.Feature{}, ErrForbidden
+	}
+	if err := validatePoint(geometry); err != nil {
+		return store.Feature{}, err
+	}
+	feature.Geometry = geometry
+	feature.UpdatedAt = time.Now().UTC()
+	s.store.SaveFeature(feature)
+	return feature, nil
+}
+
 type CreateAssetInput struct {
 	FeatureID   string
 	Checksum    string